Effect of Light Intensity and Spectral Composition on Electron Transport in Chloroplasts in situ and in silico

Мұқаба

Дәйексөз келтіру

Толық мәтін

Ашық рұқсат Ашық рұқсат
Рұқсат жабық Рұқсат берілді
Рұқсат жабық Тек жазылушылар үшін

Аннотация

Light-induced redox transformations of P700, the reaction center of photosystem I, were studied by EPR method depending on the illumination conditions of plant leaves (intensity and spectral composition of the active light). Within the framework of a mathematical model, the key stages of electron transfer along the noncyclic electron transport chain containing photosystems I and II and mobile transporters (plastoquinone, plastocyanin, ferredoxin) and the processes of trans-thylakoid proton transfer associated with ATP synthesis were considered. The mechanisms of pH-dependent regulation of electron transport in chloroplasts at the acceptor and donor sites of photosystem I have been analyzed. The modeling results are in agreement with experimental data on the kinetics of light-induced transformations of P700 in chloroplasts of higher plants. The results obtained are discussed in the context of "short-term" pH-dependent mechanisms of electron transport regulation in chloroplasts in situ.

Негізгі сөздер

Авторлар туралы

B. Trubitsin

Lomonosov Moscow State University

Moscow, Russia

A. Vershubskii

Lomonosov Moscow State University

Moscow, Russia

D. Guseinova

Lomonosov Moscow State University

Moscow, Russia

A. Tikhonov

Lomonosov Moscow State University

Email: an_itkhonov@mail.ru
Moscow, Russia

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